'Free living species' diaporamas de présentation

Introduction to Parasites

Introduction to Parasites. Introduction. Parasite is an organism baring food and shelter temporarily or permanent and living in or on another organism. The study of parasites is called Parasitology . Parasites can be

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Nitrogen Cycle

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Kingdom Animalia

Kingdom Animalia. Phylum Porifera. The sponges. Porous body wall-allows food and water to enter. Adults are sessile(attached to ocean floor). Asymmetrical - no definite shape. Phylum Cnidaria. Formerly the coelenterates. Body wall made up of two layers-ectoderm and endoderm.

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